Unhealthy Tree Symptoms

Trees are living organisms and, as such, are susceptible to a range of diseases and health issues. You may not be able to communicate with trees to learn what the problem is, but there are a number of visual symptoms that may indicate your tree is unhealthy. All Tree Care is the specialist in tree removal on the Northern Beaches and has seen first hand the various stages of tree disease. We can advise you on what to look out for in order to give you the best chance of saving your tree. This is not always possible, however, and you may require expert North Sydney tree removal, in which case, we are happy to help.

Here are symptoms to keep an eye out for:

The top of the tree withering

Furthest from the life-giving roots, the top of the tree is often one of the first sections to suffer.

Discolouration of leaves

It may not only be a sign of autumn, but it may also be one of the first signs that you will need North Sydney tree removal. Lighter than usual shades, yellowing or browning leaves may indicate poor tree health.

Foliage wilting

Some common signs of sickness include spots, pustules or insects on leaves, or holes in leaves.

Varying foliage density

A healthy tree generally has a fairly even coverage of foliage. If there is less concentration in some areas of the tree, particularly at the crown, it may be at risk.

Sap on the bark

Sap acts as a defense mechanism for trees, so its presence may be an indication that your tree is suffering in some way.

Abnormal growths

Look out for unusual growths on the trunk, branches or twigs of your tree. This can be an outward sign of disease.


The presence of some insects is expected in the natural environment, but if there seems to be excess in your tree, this may be a sign that it has been infested. Termites are a particularly prevalent reason for tree removal on the Northern Beaches.

Prevention is the best form of defense when it comes to tree health and early detection of sickness will give you the best chance of saving your tree. Unfortunately, though, this is not always possible and a sick tree can be harmful to the surrounding environment, a toppling hazard and an eyesore. All Tree Care will save trees whenever possible, but when North Sydney tree removal is required, they are your regional experts and always complete work to a safe, efficient, and high standard.